Lumber jack



0. LARSON.

LUMBER JACK. I APPLICATION FILED MAR. 22, I920.

1,41 1,044, Patented M51. 28, 1922.

2 SHEETSSHEET I.

gdwcntot Olaf Larson.

55 ,04 EMM 0. LARSON.

. LUMBER JACK.

APPLICATlON-HLED MAR. 22, 1920.

1,41 1 ,044. P ted Mar- 28, 1 922.

2 SHEETS-SHE 2.

wacntor 01m" Larson.

erence. indicate corresponding l g T A oLAr Len-son, or OAKLAND, CALIFORNIA...

LUMBER JACK.

ininoii.

Application filed March 22, 1920. Serial No. 367,665.

To all whom it may conceit i:

Be itknownthatl, OLAELARSON, a citizen of the. lllnited'States, residing at Oakland.

in the county of Alamedaand State of Cali fornia, have invented certain new and useful Improvements in a Lumber Jack, of which; the following is a specification.

This invention relates to improvements in lumber loaders such as are used'in loading andunloading'lumber into and out of freight cars. and. the like. The. principal object of the invention is to provide a device of this character which is adjustable. for any width of door, may be positioned at any point in the height thereof, and very quickly and easily clamped in position or taken down.

I feel that my improved loader marks a great advance in its field, as the present loaders are. very troublesome after: they become worn. able over a wide range, and cannot be ethciently used, if at all, if the doors ofthe car are too wide.

In the drawings, similar characters of refparts in the several views, of whichv Figure .1 is, a side view of my loader as it is placed in the door of a freight car.

Figure 2' is. a side view 'of the roller and its mounting.

Figure 3 is an end view of the same.

Figure 4: is a bottom view of the roller.

Figure 5 is a bottom view of the roller mounting plate.

F gure 6 is a top plan view of the support ing members with the roller removed.

Figure 7 is a bottom plan view of the same.

Figure 8 is an end view of one of the supporting members. 1

Figure 9 is an end view of the other supporting member.

Figure 10 is a fragmentary lan view of one end of a supporting inem er.

Figure 11 is a fragmentary side view of.

the clamping device.

Figure 12 is a fragmentary bottom view of the clamping device with the handle removed. l

Referring now more particularly to the numerals of reference on the drawings, the numeral 1 denotes a roller journaled in a 1 U-shaped frame 2. The frame 2 rests on and is clamped to supports 3, comprising a pair of horizontally spaced beams 1- and hereinafter described.

Furthermore, they are not adjust Between the base of the frame 2 and the support 2) and resting on the latter is a r1der 6, knurled on its upper face, which has flanges 7 adapted to set over the outer edges oflthc support 3 to prevent rotation of the l'lC er. radial ribs 8, which set in the knurls of the rider and maintain the frame and the roller therein in any set position. A bolt 9 passes through the frame 2, the rider 6 and a saddle 10,-which bears against the undersides of the support 3. A. handle nut '11 on the bolt 9 provides means for cinching up on the bolt and causing the frame 2, the rider and the supportto be securely clamped together. Bv

retracting the handle on the bolt theribs S may be freed from the knurls of the rider, and the frame and roller permitted to turn or to be moved lengthwise of the support 3.

As stated, the support 3 comprises two s aced. beams 4t and 5. The beam t has a p urality of teeth 13 along its lower edge, and the beam 5 has likewise teeth 1i along its upper edge One end of the beam 5 carries a prong 15 extending horizontally therebeyond, while the other end has a yoke or The underside of the frame 2 has saddle 16 adapted to restover the beam l.

A dog or lug 17 formed on the yoke rests in one of the teeth 14 and a spacer'lS- also formed on said yoke maintains the "spaced relation of the beams 4 and 5. I

On the end of the beam at nearest the prong 15 is a yoke 19 which passes under the beam 4 and has a dog 20 resting in one of the teeth 13 in said beam, and likewise a spacer 21 to keep the beams 4: and 5 spaced at that point, to a sufficient degree that the bolt 9 may easily pass therebetween.

By the construction just described, when the bolt 9 is loose, the beams may be moved lengthwise of each other to alter the distance between their outer ends. By cinching up on the bolt, the beams 4. and 5 are held in any desired lengthwise position by reason of the dogs in the yokes .16 and 19 setting in their corresponding teeth.

The end of the beam 5 opposite the yoke 19 is provided with a clamping device 22, which comprises a prong 23 eccentrically pivoted to a handle 24 as shown at 525.

The handle is pivotedto the frame 26 of the clamp as at 27. A slotted link 28 is pivoted with the prong at its pivotal connecrant 31 on the frame receive a pawl 32 on the handle, to keep the latter in any desired 17 engaging the teeth 14-, and the yoke 19 is slipped over the bar 5 with the-spacer 2l' engaging the outside of said bar and the dog '20 engaging the teeth 13.

In placing the device in a car door the 7 prong 15 is first engaged in one side of the door frame; the dogs 17 and .20 are'disengaged from the teeth 14: and 13 respectively; the bars 4 and 5 are'moved longitudinally withrelation to each otheruntil the end of prong 23 rests within the opposite side :of the door frame and the yokes 16 and 19 are slipped on the bars a and 5 until the dogs 17 and 20 engage the teeth 14 and 13 the lever 26 is then swung on itspivotuntil the end of prong 23 presses against said side of the door frame and the pawl 32 is introduced into a quadrant tooth 30. v

Havingithus described my invention, what I claimas new and useful and desire to secure by Letters Patent is 1. A lumber loader comprising a support adapted to be adjusted as tolength, a roller carried by the support and adapted to be moved lengthwise thereof and to have hori zontal swivel movement relative thereto, a rigid prong on one end of the support, another prong at the other end of the support, a handle pivoted to-the beam and to which the prong is eccentrically pivoted, and means for maintaining the handle in any set position. a

2. A lumber loader embodying a support adapted to be clampedto a frame and comsponding dogs, a roller device carried by the beams and adapted to be moved lengthwise thereof, and a clamp mounted to the roller and engaging the beams, whereby the roller and beams may be firmly bound together and the latter held in locked engage ment at any point within their rangeof rela 'tive movements.

3. A lumber loader-comprising a support, a rigidrprong on one endof said support,-'a prong slidably mounted on the other end of said support, an operating lever pivoted on said other end of the support to which lever the inner end of said slidable prong is pivoted, a toothed segment on said other end of the support, and a pawl 011 said lever for engaging the teeth in said segment to lock said'slid'able prong against movement.

4. A lumber loader including two bars, teeth on one edge of each of said bars, a yoke on one end of'each' bar fitting on the other bar, a spacer in each yoke for spacing the bars, a dog in each yoke for engaging the teeth on the other bar, a fixed prong on the other end of one of said bars for engaging one side of a car door frame, a slidable prong on the otherend of the other bar for engaging the other side of the door frame, and

means for locking said slidableprong in engagement with said otherside of the door frame. i 7 v In testimony whereof I aflix my signature.

OLAF'LARSON. 

